TST: unskip test_close_file_handle_on_invalid_usecols #45566 (#54572)

remove import

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>

Author: fangchenli

pandas/tests/io/parser/test_unsupported.py

@@ -12,11 +12,6 @@
 
 import pytest
 
-from pandas.compat import (
-    is_ci_environment,
-    is_platform_mac,
-    is_platform_windows,
-)
 from pandas.errors import ParserError
 
 import pandas._testing as tm
@@ -177,9 +172,6 @@ def test_close_file_handle_on_invalid_usecols(all_parsers):
     if parser.engine == "pyarrow":
         pyarrow = pytest.importorskip("pyarrow")
         error = pyarrow.lib.ArrowKeyError
-        if is_ci_environment() and (is_platform_windows() or is_platform_mac()):
-            # GH#45547 causes timeouts on windows/mac builds
-            pytest.skip("GH#45547 causing timeouts on windows/mac builds 2022-01-22")
 
     with tm.ensure_clean("test.csv") as fname:
         Path(fname).write_text("col1,col2\na,b\n1,2", encoding="utf-8")